Metal door and the like



Dec. 25, 1928.

1,696,373 o E. ZENKER METAL DOOR AND THE LIKE Filed Oct. 5, 1925 5 1 H 11:2. 22:51.! M F s 3 16/ 12 2o 17 11 Patented Dec. 25, 1928.

OSCAR E. ZENKER,- OF BROOKLYN, NEW YORK, ASSIGNOR TO RELJ IANCEVFIREPROOF DOOR (10., OF BROOKLYN, NEW YORK, A. CORPORATION OF- NEW' YORK.

METAL .DOIOR'MAND THE LIKE.

Application filed October 5', 1925. Serial No. 60,429. a

My present invention relates ,to metal doors, windows andtlie like, and aims to devise structures of the general characterspecified above, which are simple in construction, easy and convenient to fabricate and to assemble, economical in theamount of labor and material required for their assembling, and which areneat and attractive in appearance and rugged in constructiom' Other ob; jects and advantages of the present invention will'in part be pointed out in'detail subsequently in this specification'and will in part be obvious to those skilled. in the art to which the present invention relates.

In the accompanying specification I shall describe, and in the annexed drawing illustrate, several illustrative embodiments of the articles of the present invention. It is, how

ever,- to be. clearly understood that my inven tion isnot limited to the specific embodimentsthereof herein shown and described for purposes of, illustration only.

Referring now to the drawing illustrating the aforesaid illustrative embodiments of the present invention: y Fig. 1 is a front elevation, partly broken away, showing a door panel for embodiment in one of the aforesaid llustrative embodiments of the present invention;

Fig. 2 is a front elevation n enlarged de tail, broken away, showing one. of the slots in the panel illustrated in 1 of the drawing; 7

Fig; 3 is a cross-sectional view taken along line 33 of Fig. 2 of'the drawingshowing thepanel portion illustrated in Fig. 2 of the drawing;

Fig. 4; is a view similar to Fig. 3 showing the initial position" of one of the welding lugspreferably employed in the first. of the aforesaid illustrative embodiments of the present invention;

Fig. 5 is a view similar toFig; 3 showing the welding lug of Fig. 4; of the drawing in its final position within the slot in the panel in accordance with the aforesaid illustrative embodiment of the present invention;

Fig. 6 is a cross-sectional detailed view showing a portion of the coinpletelyassembled door madein accordance with the afore said illustrative embodiment of the present invention g F 1g? is a perspective view of a lug which may be used in fabricating the aforesaid vention illustrative embodiment of the present in -Fig; 8 isa perspective view ofa modified form of lug whichinay be used in fabricating another of the aforesaid illustrative embodiments of the present invention; and

Fig. 9 isa perspective view of still another form of lug which maybe used in fabricating the third and last of the aforesaid illustrative embodiments ofthe present invention.

. Referring now to the aforesa d illustrative embodiments of the present invention, and more particularlyto the first of the aforesaid illustrativeembodiments of the present invention, as illustrated in Figs. .1 to 7,-inclusive, of the drawing,"10 indicates in general a metal doorpaiielpreferably of the hollow metal door. panel type of construction. For

this purpose the metal door panel 10 preferably comprises a substantially flat sheet metal base member 11 having the marginal portion 12 and the cooperating formed sheet metal member 13 having; the-bevelled portion 14: and the marginal portion 15.. y

The marginal portions 12 and 15 of the Q sheet nietal members 11 and 13, respectively, thuscooperate'to provide the flange portion 16 and the hollow portion 17; which may, if

, desired, be filled with any suitable tiller, such as'corlr, asbestos or the like. 01', if desired, this iiller mayconsist of beaver board or of a wooden board, this latter arrangementbeing preferable since the entire panel is to be slotted in them-inner shortly to be described.

At this'stage the sheet metal members 11 and 13' of the door panel 10 may be'suitably atginal portions 12 and 15 of the same as by tached to each other, preferablyat the mar.

spot welding alonga series'of spacedgpoints,

as indicated byreference character 18.

The metal door panel member thus obries of spaced slots orother perforations. In

now being described, the perforations are in ,the form of a series of slots 20,-fourteen such tained is now preferably provided -withaiseslots being shown in the panel illustrated in Fig. 1 of the drawing. As shown in Fig.

l'of the drawingpthe slots 20, aresu'bstam tially rectangular in configuration andare v disposed within the bevelled'member 14 with their longer dimensions substantially 11011112111 to the edges of the panel adjacentto which the'slots are located; Also,as shown infFig.

1 of the drawing there are three such slots adjacent both the top and the bottom of the door panel 10 and four such slots adjacent each of the lateral edges of the door panel.

I now insert into the slots aseries of welding lugs generally designated by reference character 30 and comprising in the arse of the present illustrative embodiment of the invention now being described the head portions 31 and 3.2 and the connecting shank portion 33, all as more clearly shown in F Yet the drawing. The head portions 31 and 3:2 of the lugs 30 are rectangular and of'a size to enable them to be passed into the slots QOwhen the lugs 30 are positioned with respect to their respective slots 20 as shoi vn in F lot the drawing. 1 7

It willthereii'ore be noted that the end'portions '31 and 32 constituting the heads of the so as to permitthe lug 30, when once posi-' tioned within its respective slot or perforation 20, to be turned into the final position iroin the initial position shown in Fig. 4; of the drawin into such final position as shown in Fig". 0 of the drawing. In this position of r the lugs, in this case fourteen in number, within the respective slots or other perforations 20, the lugs'a're suitably positioned on thepanel 10 within suchperforations for the further steps now-to be described.

I now provide one or more auxiliary door members, preferably trim members, and preferably aplurality of such trim members, one for each side of the panel of the door in which the panel is to beincorporated. For this purpose I prefer to employ a plurality of trim 3 members having the profile or cross section shown in Fig. 6 of the drawing. As shown in Fig. 6' of the drawing the trim lllellll'Jt-lfi, of which a plurality are there. shown, each being -designated by reference character-L40, each comprise the main web portion ll, the longitudinally (l1SpOSGClfl2I1g6 port1onu l2, the

transverse flange portion 43, and the Chan-- nelled portion as provided on its-interior with the channel 45. The trim, members 40 may be-continuously or otherwiseformed in a rolling operation from a strip or sheet of metal and may have any desired profile or cross section. I prefer, however, that such trim members shall be provided With the channelled portion a land the channel 45, or their equivalents, for a purpose subsequently to be described in considerable detail herein. 7 Associated with the-panel member 10 and the trim members 40 are a plurality of surrounding stile members, here designated by p eral panel portions, as desircc arrangement forms no part of thepresent inreference character50. The stile-'i'nembers 50 are oi: the usual construction and may, for

example, be of the hollow metal type of construction, being provided with a filler 51-015 cork, asbestos,, wood, beaver board or the like. The stile'members 50 may be arranged as desired to constitute either a frame tor the panel or may also intersect or pass over ,the

panel, which'm'ay itself be divided into sev- Smce this ventio'n, it is not deemed necessary to be described herein detaili In assembling the door, thevarious members of which have been described-in detail above, I insert the lugs 30, which may be termed welding lugs and which may be made of iron or steel, preferably the latter, into the perforations 20 in the door'panel member 10 in the manner diagrammatically illustrated in Figs. fl and 5 of "the drawing. The lugs 30 being thus PIOPGILYPOSltlOIlQCl within-and tore the lugs 30 have beenso inserted and positioned, I apply the door panel member to thestile members 50,3v-hich latter are pre'ierably provlded witha plurality of cooperat ingflange portions 2 and Thecoopew ating fiange portions '52 and'53 preferably jco nprise extensions of themetal sheet or:

covering of which the'hollo'wmetal stilemembers 50 are preferablyformed. The flange portionslG, made up oi the marginal .mem bers 12 and mm sheet metal portions 11 and 18, respectively, or the metal door panel member 10,- are now suitably attached to the flan'ge portions 52 and 53 of the hollow:

metal stile members 50; For this purpose I may spot weld or, otherwise autogenously weld the various flange members just enumerated, along a series of spaced points, as des-rv ignatedby reference character 54 indicating one of such points. J 1

The door panel member .10, thus having been fixed along and assembled with, the stile retained by the pert'orations 20, or even beill,"

members 50, is now in position to have thetrim members 4:0 or their equivalents applied thereto. For this purpose I apply'the trim members 40 to the assembled'panel and stile membersso that the protruding heads 31 and 32 of the lugs 30, now positioned'within the respective slots 2O, ar'e received within the channels 45, of the channel members 44 ofthe respective trim membersslO. Inthis posit-ion ot the described parts thellongitudinal flange:

42 of each trim member 0 will be flush with f andhe over a lateralportion of the corresp ondin g stile member 50, while the transverse flange 43 willv abut against the door panel member 10;

I now suitably 40, or their equivalents, to the door panel member 10 or its equivalent, preferably by means of the welding lugs 30', fFor this purpose I prefer tospot weld or otherwise autogatt-ach the trim members lEiu enously Weld the trimniembers 4L0 tothe protruding ends ofthe heads 31 and 82 of the res ective WG-lCllD lu s 80. This ma readily be done in a manner which will read:-

ily be apparent to those skilled in the art to which the present invention relates.

This completes the assembling of the door described above and constituting the first of the aforesaid illustrative embodiments of the present invention. The advantages of the structures, embodying the principles of the present invention are numerous and of great practical importance. accordance With the principles of the present invention are simple in construction, requirfor their fabrication. also permit considerable economies in labor, material and power required for their fabrication. The structures are further oharacterized by their neatness and attractiveness in appearance and their ruggedness and long and satisfactory life; It may herebo stated that the method of forming theherein described illustrative. embodiments of the. present invention forms no part of theprea ent invention and is fully described and-illus trated in a'copending application of mine liled of even date herewith and entitled Methods of applying metal trims to doors and the like. l

Iii-Fig. 8 of the drawing I have shown in pers iective View a modified form of lug which may be embodied in another illustrative embodiment of the article of the present invention. This lug has been generally in dicated by reference character and ineludes the substantially rectangular head or end portion 31 and a lower end portion 32 which is not provided with a head. Ac ordingly the shank portion 33 of this modified form of lug 30"1nay be inserted directl into the apertures in the panel. member Ill, which apertures may be square instead of rectangula-r. Otherwise the use of the iron or steel, preferably steel, lugs 30' is the same as in the case of the lugs 30 previously described, the ends ill and 3:2 of the modified form of lugs 80 entering into the channels of the channel portions let of the trimmembers 40, as 1n the case of the lugs 30 previously de scribed; The form of the invention utilizing this modified form of in 30 is otherwise sub' stantially the same and possesses the same ad-i vantages as in the case of the embodiment of the invention utilizing the lugs 30 previously described.

InFig. 9 ofthe drawing 1 have illustrated in perspective still another-modified form of The devices made in mg simple apparatus and feiv manipulations These I constructions lug generaly designated by reference character 30 and comprising the head 31 and the lower end portion 32 With the rounded shank portion 33". It Will be noted that the lug 30 and the portions 81", 32 and 33 of the same are all substantially circular in cross section, forwvhich reason the perforations in the panel member 20 may likewise be circular rather than rectangular or square, as in the case of the two previous modifications of the present invention. The form of the invention utilizing this modified form of lug 30 is otherwise substantially the same and possesses the sanie advantages as in the case of the embodiment of the invention utilizing the lugs 30 as already described.

What I claim as my invention is:

l. A metal door. comprising a metal panel member, surrounding metal stile members,

means comprising Welded cooperating flange members on said metal panel and surrounding metalstile members for attaching said metal panel member to. said surrounding metal stile members, a plurality of metal lugs positioned Within perforations in said metal panel 'membenand a plurality of opposed, cooperating metal trim members, one on each side of said metal panel member, attached tosaid metal lugs. s 7

2 A metal door comprising a metal panel member, surrounding metal stile members, means for attaching said'metal panel member to said surrounding metal stile members, a plurality of metal lugs positioned within perforations in said metal panel member, and a pluraityv of opposed, cooperating, channelled metal trim members, one on each side of said metal panel member and containing end portive channels, attached to said metal lugs.

3. A metal door compr1s1ng a metal panel member, surrounding metal stile members.

name to this specification this 24th dayof September, 1925. a

OSCAR EQZENKER.

'tions of said metal lugs Within their respe'c- 

